ES2388490T3 - Desaturasas - Google Patents

Desaturasas Download PDF

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Publication number
ES2388490T3
ES2388490T3 ES10009225T ES10009225T ES2388490T3 ES 2388490 T3 ES2388490 T3 ES 2388490T3 ES 10009225 T ES10009225 T ES 10009225T ES 10009225 T ES10009225 T ES 10009225T ES 2388490 T3 ES2388490 T3 ES 2388490T3
Authority
ES
Spain
Prior art keywords
cell
plant
polypeptide
fatty acids
fatty acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES10009225T
Other languages
English (en)
Spanish (es)
Inventor
Ian Alexander Graham
Thierry Tonon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of York
Original Assignee
University of York
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0206308A external-priority patent/GB0206308D0/en
Priority claimed from GB0212133A external-priority patent/GB0212133D0/en
Priority claimed from GB0216013A external-priority patent/GB0216013D0/en
Priority claimed from GB0225489A external-priority patent/GB0225489D0/en
Application filed by University of York filed Critical University of York
Application granted granted Critical
Publication of ES2388490T3 publication Critical patent/ES2388490T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/0004—Oxidoreductases (1.)
    • C12N9/0071—Oxidoreductases (1.) acting on paired donors with incorporation of molecular oxygen (1.14)
    • C12N9/0083—Miscellaneous (1.14.99)
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09—Recombinant DNA-technology
    • C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
    • C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
    • C12N15/8241—Phenotypically and genetically modified plants via recombinant DNA technology
    • C12N15/8242—Phenotypically and genetically modified plants via recombinant DNA technology with non-agronomic quality (output) traits, e.g. for industrial processing; Value added, non-agronomic traits
    • C12N15/8243—Phenotypically and genetically modified plants via recombinant DNA technology with non-agronomic quality (output) traits, e.g. for industrial processing; Value added, non-agronomic traits involving biosynthetic or metabolic pathways, i.e. metabolic engineering, e.g. nicotine, caffeine
    • C12N15/8247—Phenotypically and genetically modified plants via recombinant DNA technology with non-agronomic quality (output) traits, e.g. for industrial processing; Value added, non-agronomic traits involving biosynthetic or metabolic pathways, i.e. metabolic engineering, e.g. nicotine, caffeine involving modified lipid metabolism, e.g. seed oil composition
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/10—Transferases (2.)
    • C12N9/1025—Acyltransferases (2.3)
    • C12N9/1029—Acyltransferases (2.3) transferring groups other than amino-acyl groups (2.3.1)
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
    • C12N9/93—Ligases (6)
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K2217/00—Genetically modified animals
    • A01K2217/05—Animals comprising random inserted nucleic acids (transgenic)

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Zoology (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Cell Biology (AREA)
  • Nutrition Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Plant Pathology (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Saccharide Compounds (AREA)
ES10009225T 2002-03-16 2003-03-17 Desaturasas Expired - Lifetime ES2388490T3 (es)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB0206308 2002-03-16
GB0206308A GB0206308D0 (en) 2002-03-16 2002-03-16 Enzymes
GB0212133 2002-05-25
GB0212133A GB0212133D0 (en) 2002-05-25 2002-05-25 Enzymes
GB0216013 2002-07-11
GB0216013A GB0216013D0 (en) 2002-07-11 2002-07-11 Enzymes
GB0225489A GB0225489D0 (en) 2002-11-01 2002-11-01 Enzymes
GB0225489 2002-11-01

Publications (1)

Publication Number Publication Date
ES2388490T3 true ES2388490T3 (es) 2012-10-15

Family

ID=28046602

Family Applications (1)

Application Number Title Priority Date Filing Date
ES10009225T Expired - Lifetime ES2388490T3 (es) 2002-03-16 2003-03-17 Desaturasas

Country Status (8)

Country Link
US (1) US7705202B2 (de)
EP (2) EP1487985B1 (de)
AT (1) ATE495263T1 (de)
AU (1) AU2003224236A1 (de)
CA (1) CA2519169C (de)
DE (1) DE60335708D1 (de)
ES (1) ES2388490T3 (de)
WO (1) WO2003078639A2 (de)

Families Citing this family (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6566583B1 (en) * 1997-06-04 2003-05-20 Daniel Facciotti Schizochytrium PKS genes
US7247461B2 (en) * 1999-01-14 2007-07-24 Martek Biosciences Corporation Nucleic acid molecule encoding ORFA of a PUFA polyketide synthase system and uses thereof
US20070244192A1 (en) * 1999-01-14 2007-10-18 Martek Biosciences Corporation Plant seed oils containing polyunsaturated fatty acids
US7217856B2 (en) 1999-01-14 2007-05-15 Martek Biosciences Corporation PUFA polyketide synthase systems and uses thereof
US8003772B2 (en) * 1999-01-14 2011-08-23 Martek Biosciences Corporation Chimeric PUFA polyketide synthase systems and uses thereof
US7211418B2 (en) * 1999-01-14 2007-05-01 Martek Biosciences Corporation PUFA polyketide synthase systems and uses thereof
GB0316629D0 (en) * 2003-07-16 2003-08-20 Univ York Transgenic cell
JP4071622B2 (ja) 2000-09-28 2008-04-02 バイオリジナル フード アンド サイエンス コーポレーション 脂肪酸不飽和化酵素ファミリーのメンバーであるｆａｄ４、ｆａｄ５、ｆａｄ５−２およびｆａｄ６、ならびにそれらの使用方法
AU2002317372B2 (en) * 2001-07-20 2008-04-10 University Of Leeds Regulation of peroxisomal fatty acid transport in plants
CN103451246B (zh) 2004-04-22 2018-02-16 联邦科学技术研究组织 用重组细胞合成长链多不饱和脂肪酸
CA3023314C (en) 2004-04-22 2019-12-10 Commonwealth Scientific And Industrial Research Organisation Synthesis of long-chain polyunsaturated fatty acids by recombinant cells
AU2011232757B2 (en) * 2004-04-22 2013-10-03 Commonwealth Scientific And Industrial Research Organisation Synthesis of long-chain polyunsaturated fatty acids by recombinant cells
GB0421937D0 (en) * 2004-10-02 2004-11-03 Univ York Acyl CoA synthetases
KR101524398B1 (ko) 2006-03-15 2015-06-04 디에스엠 아이피 어셋츠 비.브이. Ｐｕｆａ 폴리케티드 신타제 시스템을 이용한 이종 생물체내 다불포화 지방산의 제조
CN105123532B (zh) 2006-07-14 2018-12-18 联邦科学技术研究组织 改变水稻的脂肪酸组成
EP2059588A4 (de) 2006-08-29 2010-07-28 Commw Scient Ind Res Org Fettsäuresynthese
US8088614B2 (en) * 2006-11-13 2012-01-03 Aurora Algae, Inc. Methods and compositions for production and purification of biofuel from plants and microalgae
JP2010533003A (ja) 2007-07-13 2010-10-21 オーシャン ニュートリッション カナダ リミテッド Ｄ４デサチュラーゼ及びｄ５エロンガーゼ
US8318914B2 (en) 2007-07-31 2012-11-27 Bioriginal Food & Science Corp. Elongases and methods for producing polyunsaturated fatty acids in transgenic organisms
BRPI0908642A2 (pt) 2008-05-23 2020-06-23 E.I. Du Pont De Mours And Company Polinucleotídeo recombinante, construção de dna recombinante, método para aumentar o teor total de ácido graxo de uma semente, produto ou subproduto, método para produzir uma semente de oleaginosa com um teor total de ácidos graxos aumentado e método para produzir um produto a partir de uma semente de oleaginosa
CA2723427C (en) * 2008-05-23 2018-01-23 E. I. Du Pont De Nemours And Company Novel dgat genes for increased seed storage lipid production and altered fatty acid profiles in oilseed plants
CA2768737A1 (en) 2008-07-21 2010-01-28 Commonwealth Scientific And Industrial Research Organisation Improved vegetable oils and uses therefor
CN102202498B (zh) 2008-07-21 2016-09-07 澳大利亚联邦科学与工业研究组织 改良的棉籽油及应用
US20100022393A1 (en) * 2008-07-24 2010-01-28 Bertrand Vick Glyphosate applications in aquaculture
US8809559B2 (en) 2008-11-18 2014-08-19 Commonwelath Scientific And Industrial Research Organisation Enzymes and methods for producing omega-3 fatty acids
US8431772B1 (en) 2008-11-19 2013-04-30 University Of Kentucky Research Foundation Diacylglycerol acyltransferase sequences and related methods
US8940340B2 (en) * 2009-01-22 2015-01-27 Aurora Algae, Inc. Systems and methods for maintaining the dominance of Nannochloropsis in an algae cultivation system
US8143051B2 (en) * 2009-02-04 2012-03-27 Aurora Algae, Inc. Systems and methods for maintaining the dominance and increasing the biomass production of nannochloropsis in an algae cultivation system
CN102741267B (zh) * 2009-03-19 2020-06-23 帝斯曼知识产权资产有限公司 多不饱和脂肪酸合酶核酸分子和多肽，及其组合物、制备方法和用途
US9187778B2 (en) * 2009-05-04 2015-11-17 Aurora Algae, Inc. Efficient light harvesting
US8865452B2 (en) * 2009-06-15 2014-10-21 Aurora Algae, Inc. Systems and methods for extracting lipids from wet algal biomass
US8769867B2 (en) * 2009-06-16 2014-07-08 Aurora Algae, Inc. Systems, methods, and media for circulating fluid in an algae cultivation pond
US9101942B2 (en) * 2009-06-16 2015-08-11 Aurora Algae, Inc. Clarification of suspensions
US20100325948A1 (en) * 2009-06-29 2010-12-30 Mehran Parsheh Systems, methods, and media for circulating and carbonating fluid in an algae cultivation pond
US8747930B2 (en) * 2009-06-29 2014-06-10 Aurora Algae, Inc. Siliceous particles
US8765983B2 (en) * 2009-10-30 2014-07-01 Aurora Algae, Inc. Systems and methods for extracting lipids from and dehydrating wet algal biomass
US8748160B2 (en) * 2009-12-04 2014-06-10 Aurora Alage, Inc. Backward-facing step
US8202425B2 (en) 2010-04-06 2012-06-19 Heliae Development, Llc Extraction of neutral lipids by a two solvent method
US8211308B2 (en) 2010-04-06 2012-07-03 Heliae Development, Llc Extraction of polar lipids by a two solvent method
US8313648B2 (en) 2010-04-06 2012-11-20 Heliae Development, Llc Methods of and systems for producing biofuels from algal oil
WO2011127127A2 (en) 2010-04-06 2011-10-13 Arizona Board Of Regents For And On Behalf Of Arizona State University Extraction with fractionation of oil and co-products from oleaginous material
US8476412B2 (en) 2010-04-06 2013-07-02 Heliae Development, Llc Selective heated extraction of proteins from intact freshwater algal cells
US8273248B1 (en) 2010-04-06 2012-09-25 Heliae Development, Llc Extraction of neutral lipids by a two solvent method
US8308951B1 (en) 2010-04-06 2012-11-13 Heliae Development, Llc Extraction of proteins by a two solvent method
US8115022B2 (en) 2010-04-06 2012-02-14 Heliae Development, Llc Methods of producing biofuels, chlorophylls and carotenoids
US8475660B2 (en) 2010-04-06 2013-07-02 Heliae Development, Llc Extraction of polar lipids by a two solvent method
US8211309B2 (en) 2010-04-06 2012-07-03 Heliae Development, Llc Extraction of proteins by a two solvent method
ES2640100T3 (es) 2010-06-28 2017-10-31 Commonwealth Scientific And Industrial Research Organisation Métodos para producir lípidos
US8926844B2 (en) 2011-03-29 2015-01-06 Aurora Algae, Inc. Systems and methods for processing algae cultivation fluid
US8569530B2 (en) 2011-04-01 2013-10-29 Aurora Algae, Inc. Conversion of saponifiable lipids into fatty esters
US8752329B2 (en) 2011-04-29 2014-06-17 Aurora Algae, Inc. Optimization of circulation of fluid in an algae cultivation pond
US8365462B2 (en) 2011-05-31 2013-02-05 Heliae Development, Llc V-Trough photobioreactor systems
USD679965S1 (en) 2011-06-10 2013-04-16 Heliae Development, Llc Aquaculture vessel
USD661164S1 (en) 2011-06-10 2012-06-05 Heliae Development, Llc Aquaculture vessel
USD682637S1 (en) 2011-06-10 2013-05-21 Heliae Development, Llc Aquaculture vessel
WO2013075116A2 (en) 2011-11-17 2013-05-23 Heliae Development, Llc Omega 7 rich compositions and methods of isolating omega 7 fatty acids
CA3203397A1 (en) 2011-12-27 2013-07-04 Nuseed Global Innovation Ltd Processes for producing lipids
US8809026B2 (en) 2011-12-27 2014-08-19 Commonwealth Scientific And Industrial Research Organisation Processes for producing lipids
US11639507B2 (en) 2011-12-27 2023-05-02 Commonwealth Scientific And Industrial Research Organisation Processes for producing lipids
CA2871503C (en) 2012-04-25 2023-08-29 Commonwealth Scientific And Industrial Research Organisation High oleic acid oils
BR122019026149A8 (pt) 2012-06-15 2022-06-28 Commw Scient Ind Res Org Célula hospedeira, processo de produzir um lipídio de planta extraído, método de produzir semente, farinha de semente, método para produzir um produto alimentício, uso e processo para produzir ésteres de etila
US9266973B2 (en) 2013-03-15 2016-02-23 Aurora Algae, Inc. Systems and methods for utilizing and recovering chitosan to process biological material
PE20170253A1 (es) 2013-12-18 2017-04-14 Nuseed Pty Ltd Lipido que comprende acidos grasos poliinsaturados de cadena larga
AU2015281791A1 (en) 2014-06-27 2017-01-12 Commonwealth Scientific And Industrial Research Organisation Lipid comprising docosapentaenoic acid
WO2016004473A1 (en) 2014-07-07 2016-01-14 Commonwealth Scientific And Industrial Research Organisation Processes for producing industrial products from plant lipids
WO2016075327A2 (en) 2014-11-14 2016-05-19 Basf Plant Science Company Gmbh Production of pufas in plants
US11859193B2 (en) 2016-09-02 2024-01-02 Nuseed Global Innovation Ltd. Plants with modified traits
CN109022284B (zh) * 2018-09-03 2021-05-21 杭州园泰生物科技有限公司 提高球等鞭金藻生物量以及dha产量的方法
CA3129494A1 (en) 2019-02-14 2020-08-20 Cargill, Incorporated Brassica plants producing elevated levels of polyunsaturated fatty acids
AU2021373697A1 (en) 2020-11-04 2023-06-08 Basf Plant Science Company Gmbh Harvest management
EP4312517A1 (de) 2021-03-25 2024-02-07 BASF Plant Science Company GmbH Düngemittelverwaltung

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1288073C (en) 1985-03-07 1991-08-27 Paul G. Ahlquist Rna transformation vector
US5569597A (en) 1985-05-13 1996-10-29 Ciba Geigy Corp. Methods of inserting viral DNA into plant material
US5268463A (en) 1986-11-11 1993-12-07 Jefferson Richard A Plant promoter α-glucuronidase gene construct
US5608142A (en) 1986-12-03 1997-03-04 Agracetus, Inc. Insecticidal cotton plants
ES2187497T3 (es) 1990-04-12 2003-06-16 Syngenta Participations Ag Promotores preferentemente en tejidos.
US5498830A (en) 1990-06-18 1996-03-12 Monsanto Company Decreased oil content in plant seeds
US5399680A (en) 1991-05-22 1995-03-21 The Salk Institute For Biological Studies Rice chitinase promoter
DE69230290T2 (de) 1991-08-27 2000-07-20 Novartis Ag, Basel Proteine mit insektiziden eigenschaften gegen homopteran insekten und ihre verwendung im pflanzenschutz
US5814618A (en) 1993-06-14 1998-09-29 Basf Aktiengesellschaft Methods for regulating gene expression
US5789156A (en) 1993-06-14 1998-08-04 Basf Ag Tetracycline-regulated transcriptional inhibitors
US5608144A (en) 1994-08-12 1997-03-04 Dna Plant Technology Corp. Plant group 2 promoters and uses thereof
US6307128B1 (en) 1997-06-03 2001-10-23 Miami University Fatty acid elongases
US6677145B2 (en) * 1998-09-02 2004-01-13 Abbott Laboratories Elongase genes and uses thereof
JP2002538826A (ja) 1999-03-18 2002-11-19 ザ ユニバーシティ オブ ブリストル カエノラブジチス・エレガンス由来の多飽和脂肪酸（ｐｕｆａ）エロンガーゼ
PL207026B1 (pl) 2000-02-09 2010-10-29 Basf Ag Wyizolowany kwas nukleinowy, konstrukt genowy zawierający ten kwas, sekwencja aminokwasowa kodowana przez wyizolowaną sekwencję tego kwasu nukleinowego, wektor zawierający kwas nukleinowy lub konstrukt genowy, roślina transgeniczna lub mikroorganizm transgeniczny zawierający kwas nukleinowy, konstrukt genowy lub wektor, przeciwciało specyficznie wiążące się z polipeptydem kodowanym przez kwas nukleinowy, cząsteczka antysensownego kwasu nukleinowego oraz sposób wytwarzania wielonienasyconych kwasów tłuszczowych (PUFA)

Also Published As

Publication number Publication date
WO2003078639A3 (en) 2004-02-12
CA2519169C (en) 2013-04-30
WO2003078639A2 (en) 2003-09-25
US20050164192A1 (en) 2005-07-28
EP2302060B1 (de) 2012-07-25
AU2003224236A8 (en) 2003-09-29
EP1487985B1 (de) 2011-01-12
AU2003224236A1 (en) 2003-09-29
ATE495263T1 (de) 2011-01-15
US7705202B2 (en) 2010-04-27
EP2302060A1 (de) 2011-03-30
DE60335708D1 (de) 2011-02-24
CA2519169A1 (en) 2003-09-25
EP1487985A2 (de) 2004-12-22

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